21000391716

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{2749}}^1\times {\mathrm{15527}}^1$

素因数の和:18324

約数の個数: 48

約数和(自身を含む): 50217552000

約数和(自身を除く): 29217160284

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492, 2749, 5498, 8247, 10996, 15527, 16494, 31054, 32988, 46581, 62108, 93162, 112709, 186324, 225418, 338127, 450836, 636607, 676254, 1273214, 1352508, 1909821, 2546428, 3819642, 7639284, 42683723, 85367446, 128051169, 170734892, 256102338, 512204676, 1750032643, 3500065286, 5250097929, 7000130572, 10500195858, 21000391716]

約数ペア:

[(1, 21000391716), (2, 10500195858), (3, 7000130572), (4, 5250097929), (6, 3500065286), (12, 1750032643), (41, 512204676), (82, 256102338), (123, 170734892), (164, 128051169), (246, 85367446), (492, 42683723), (2749, 7639284), (5498, 3819642), (8247, 2546428), (10996, 1909821), (15527, 1352508), (16494, 1273214), (31054, 676254), (32988, 636607), (46581, 450836), (62108, 338127), (93162, 225418), (112709, 186324)]